[akanevsky]

No, just Arcobat Reader.

"just Acrobat Reader" is bloated enough itself... I prefer to use Easy PDF Reader, which consumes much less memory and therefore is easier to use. It, however, does not allow copying of the contents.

You don't like PDF, I don't like CHM and therefor I just don't support it.
So where is the Problem?

The problem is that you are a minority on this case... The majority does prefer CHM. That's called being selfish. If you don't do it for other people, then why do it at all? I don't think anybody wants it in PDF format at all.

It is copyrighted material. Everything one writes is automatically copyrighted if not stated otherwise.
(Although this might not always be the case considering general small talk and german copyright laws).

But if you feel happy, I can explicitly point this out too.

Ok. You are right - it is copyrighted. But as long as something is free and accessible by everyone, distribution in an easy-to-use-for-people format should be promoted. Because it will just make your name more known to other people. Besides, if I am stating your name in every article, I am not breaking the copyright. Prove me wrong.